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Finding the Fourth Proportional to 79,122.51, 118,601.75 and 49,472.26

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Solution

The fourth proportional to 79,122.51, 118,601.75 and 49,472.26 is: 74,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,122.51 : 118,601.75 = 49,472.26 : x
  2. Step 2: Convert to fraction form
    79,122.51/118,601.75 = 49,472.26/x
  3. Step 3: Cross multiply
    79,122.51x = 118,601.75 × 49,472.26
  4. Step 4: Simplify right side
    79,122.51x = 5,867,496,439.63
  5. Step 5: Solve for x
    x = 5,867,496,439.63/79,122.51
  6. Step 6: Final answer
    x = 74,157.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.